具有层状纳米结构界面的超高导热银包覆玄武岩纤维改善自润滑织物复合材料的抗磨性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-04-12 DOI:10.1016/j.triboint.2025.110722

Chuang Zhu , Yilong Tian , Yafei Zhao , Yuqi Wang , Xuqing Liu

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引用次数: 0

摘要

自润滑织物复合材料是解决关节轴承摩擦磨损问题的关键。对其摩擦学性能的控制很大程度上取决于对导热系数的控制。虽然在树脂基体中加入功能性填料可以增强摩擦换热，但仍面临力学性能差的困境。在这里，我们报道了含有自粘附左旋多巴/聚乙烯亚胺的Ag涂层玄武岩纤维，策略性地定位在Ag薄膜和玄武岩纤维之间，以增强界面粘附性。得益于粗糙、连续和致密的Ag涂层，复合材料的导热系数为0.63 W/m·K，抗拉强度为240.8 MPa，分别比传统复合材料提高了950%和91%，具有优异的抗磨性能。这种聚合物辅助金属沉积方法有望生产长寿命自润滑织物复合材料。

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Ultrahigh Thermally Conductive Ag-Coated Basalt Fibers with Hierarchical Nanostructured Interfaces for Improved Anti-Wear Properties of Self-Lubricating Fabric Composites

Self-lubricating fabric composites are essential in tackling problem of friction and wear for joint bearings. Controlling tribological properties of them largely hinges on manipulation of thermal conductivity. Although frictional heat transfer can be enhanced by adding functional fillers in resin matrix, they still face dilemma of poor mechanical performance. Here we report Ag-coated basalt fibers containing self-adherent levodopa/polyethyleneimine, strategically positioned between Ag films and basalt fibers to enhance interface adhesion. Benefiting from rough, continuous and compact Ag coatings, as-made composites exhibited thermal conductivity of 0.63 W/m·K and tensile strength of 240.8 MPa, representing increases of 950% and 91%, respectively, compared to conventional counterparts, enabling superior anti-wear characteristics. This polymer-assisted metal deposition approach is promising to produce long-life self-lubricating fabric composites.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.